EPA Air · stack tests by state and year
Air-emissions stack tests in Oklahoma, 2025
- 1,229Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in Oklahoma during 2025; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Oklahoma, 2025
- Kingfisher County 231
- Canadian County 167
- Grady County 132
- Blaine County 67
- Stephens County 62
- Pittsburg County 48
- Woods County 46
- Garfield County 42
- Garvin County 41
- Alfalfa County 41
- Hughes County 37
- Carter County 34
- Coal County 33
- Beckham County 24
- Oklahoma County 23
- Dewey County 23
- Roger Mills County 21
- Custer County 20
- Major County 15
- Woodward County 15
- McClain County 11
- Marshall County 10
- Washita County 10
- McIntosh County 8
- Latimer County 7
- Ellis County 7
- Logan County 7
- Creek County 6
- Bryan County 5
- Lincoln County 4
- Tulsa County 3
- Mayes County 3
- Texas County 3
Oklahoma, other years
Air-emissions stack tests recorded in Oklahoma, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-12-22 | TOM STACK LLC / STONE COMPRESSOR FACILITY | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-12-18 | BCE MACH III MIDSTREAM HOLDINGS LLC / NORTH OF LINCOLN COMPRESSOR STATION | CRESCENT, Kingfisher, OK | Fail | State |
| 2025-12-09 | P AND K STONE LLC / COLEMAN QUARRY | COLEMAN, Atoka, OK | Pass | State |
| 2025-12-03 | HF SINCLAIR TULSA REFINING LLC / TULSA REFINERY EAST — high-priority violation on file | TULSA, Tulsa, OK | Pass | State |
| 2025-11-20 | ET GATHERING PROCESSING LLC / GRADY COMPRESSOR STATION | CHICKASHA, Grady, OK | Pass | State |
| 2025-11-06 | GRAND RIVER DAM AUTHORITY / GRAND RIVER ENERGY CENTER — high-priority violation on file | CHOUTEAU, Mayes, OK | Pass | State |
| 2025-11-05 | ONEOK FIELD SERVICES CO LLC / GEARY BASE SALES COMPRESSOR STATION | GEARY, Blaine, OK | Pass | State |
| 2025-11-04 | MARKWEST OKLAHOMA GAS CO LLC / KINGFISHER COMPRESSOR STATION | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-10-30 | ET GATHERING PROCESSING LLC / BOBCAT COMPRESSOR STATION | HYDRO, Blaine, OK | Pass | State |
| 2025-10-28 | DCP OPERATING CO LP / WILD HOG BOOSTER STATION | BRADLEY, Grady, OK | Pass | State |
| 2025-10-23 | GEORGIA PACIFIC GYPSUM LLC / FLETCHER GYPSUM WALLBOARD — high-priority violation on file | FLETCHER, Comanche, OK | Pass | State |
| 2025-10-20 | ENABLE GAS TRANSMISSION LLC / CUSTER COMPRESSOR STATION | ARAPAHO, Custer, OK | Pass | State |
| 2025-10-14 | TOM STACK LLC / COOP COMPRESSOR FACILITY | OKARCHE, Kingfisher, OK | Pass | State |
| 2025-10-10 | WARRIOR MINERALS LLC / CANVASBACK SAND DRYING PLANT | GEARY, Caddo, OK | Pass | State |
| 2025-10-07 | TOM STACK LLC / COMMUNITY COMPRESSOR STATION | OMEGA, Blaine, OK | Pass | State |
| 2025-10-06 | ENLINK MIDSTREAM SERVICES LLC / SAPPHIRE COMPRESSOR STATION | CALUMET, Canadian, OK | Pass | State |
| 2025-10-06 | MATERIAL PRODUCERS INC / WASHITA QUARRY | DAVIS, Murray, OK | Pass | State |
| 2025-10-01 | ET GATHERING PROCESSING LLC / HAYSTACK COMPRESSOR STATION | WATONGA, Blaine, OK | Pass | State |
| 2025-09-30 | MATERIAL PRODUCERS INC / DAVIS CRUSHING PLANT | DAVIS, Murray, OK | Pass | State |
| 2025-09-30 | HF SINCLAIR TULSA REFINING LLC / TULSA REFINERY EAST — high-priority violation on file | TULSA, Tulsa, OK | Pass | State |
| 2025-09-29 | AMRIZE SOUTH CENTRAL INC / COLEMAN QUARRY | COLEMAN, Johnston, OK | Pass | State |
| 2025-09-29 | HF SINCLAIR TULSA REFINING LLC / TULSA REFINERY EAST — high-priority violation on file | TULSA, Tulsa, OK | Pass | State |
| 2025-09-18 | CONTINENTAL RESOURCES / SHERIFF GARRETT 2 SHERIFF GARRETT 5 | RATLIFF CITY, Garvin, OK | Pass | State |
| 2025-09-17 | BCE MACH III LLC / BOLLENBACH 2 29H LSEOU 89 2 4HO LSEOU | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-09-16 | TARGA PIPELINE MIDCONTINENT LLC / MATHEWS COMPRESSOR STATION | WILSON, Carter, OK | Pass | State |
| 2025-09-16 | BCE MACH III LLC / BOLLENBACH 1705 6 30MH SHACKELFORD 170 | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-09-16 | BCE MACH III LLC / BOLLENBACH 1705 6 30MH SHACKELFORD 170 | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-09-16 | BCE MACH III LLC / LSEOU 92 3HO LSEOU 93 6HO LSEOU 93 8HO | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-09-15 | TARGA PIPELINE MIDCONTINENT LLC / GRAHAM COMPRESSOR STATION | GRAHAM, Carter, OK | Pass | State |
| 2025-09-15 | BCE MACH III LLC / BENDA 3 16 6 1 2 5 7HO PAD | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-09-15 | BCE MACH III LLC / LANKARD FAMILY 3 16 6 3HO 3 16 6 4HO 3 | KINGFISHER, Kingfisher, OK | Pass | State |
| 2025-09-15 | FORMENTERA OPERATIONS / DERR 36 1 | CASHION, Kingfisher, OK | Pass | State |
| 2025-09-15 | TARGA PIPELINE MIDCONTINENT LLC / GOFF COMPRESSOR STATION | LITTLE CITY, Marshall, OK | Pass | State |
| 2025-09-11 | MARKWEST OKLAHOMA GAS CO LLC / BUTLER ARAPAHO GAS PLANT — high-priority violation on file | BUTLER, Custer, OK | Pass | State |
| 2025-09-11 | MARKWEST OKLAHOMA GAS CO LLC / BUTLER ARAPAHO GAS PLANT — high-priority violation on file | BUTLER, Custer, OK | Pass | State |
| 2025-09-11 | BCE MACH III LLC / LSEOU 26 2HO LSEOU 25 5HO PAD | DOVER, Kingfisher, OK | Pass | State |
| 2025-09-11 | BCE MACH III LLC / LSEOU 20 3HO LSEOU 21 2HO LSEOU 23 5HO | DOVER, Kingfisher, OK | Pass | State |
| 2025-09-10 | BCE MACH III LLC / LSEOU 49 5LO LSEOU 49 4HO LSEOU 49 3HO | CRESCENT, Kingfisher, OK | Pass | State |
| 2025-09-10 | BCE MACH III LLC / LSEOU 49 5LO LSEOU 49 4HO LSEOU 49 3HO | CRESCENT, Kingfisher, OK | Pass | State |
| 2025-09-10 | BCE MACH III LLC / LSEOU 8 3HO 9 3HO LNU 93 3HO PAD | DOVER, Kingfisher, OK | Pass | State |
| 2025-09-10 | BCE MACH III LLC / LSEOU 8 3HO 9 3HO LNU 93 3HO PAD | DOVER, Kingfisher, OK | Pass | State |
| 2025-09-10 | TARGA PIPELINE MIDCONTINENT LLC / KETCHUM RANCH COMPRESSOR STATION | VELMA, Stephens, OK | Pass | State |
| 2025-09-10 | TARGA PIPELINE MIDCONTINENT LLC / KETCHUM RANCH COMPRESSOR STATION | VELMA, Stephens, OK | Pass | State |
| 2025-09-09 | BCE MACH III LLC / LSEOU 16 1HO LSEOU 17 4HO LSEOU 27 4HO | CRESCENT, Kingfisher, OK | Pass | State |
| 2025-09-09 | BCE MACH III LLC / LNU 59 5HO LNU 59 6HO LNU 60 5HO PAD | DOVER, Kingfisher, OK | Pass | State |
| 2025-09-09 | DCP OPERATING CO LP / SKIPPER COMPRESSOR STATION | FOSTER, Stephens, OK | Pass | State |
| 2025-09-09 | TARGA PIPELINE MIDCONTINENT LLC / KETCHUM RANCH COMPRESSOR STATION | VELMA, Stephens, OK | Pass | State |
| 2025-09-09 | TARGA PIPELINE MIDCONTINENT LLC / KETCHUM RANCH COMPRESSOR STATION | VELMA, Stephens, OK | Pass | State |
| 2025-09-08 | DCP OPERATING CO LP / TRAMMELL BOOSTER STATION | HAMMON, Roger Mills, OK | Pass | State |
| 2025-09-08 | DCP OPERATING CO LP / SKIPPER COMPRESSOR STATION | FOSTER, Stephens, OK | Pass | State |
| 2025-09-08 | DCP OPERATING CO LP / SKIPPER COMPRESSOR STATION | FOSTER, Stephens, OK | Pass | State |
| 2025-09-08 | TARGA PIPELINE MIDCONTINENT LLC / KETCHUM RANCH COMPRESSOR STATION | VELMA, Stephens, OK | Pass | State |
| 2025-09-08 | TARGA PIPELINE MIDCONTINENT LLC / KETCHUM RANCH COMPRESSOR STATION | VELMA, Stephens, OK | Pass | State |
| 2025-09-06 | MARKWEST OKLAHOMA GAS CO LLC / DAVID BOWERS COMPRESSOR STATION | SWEETWATER, Beckham, OK | Pass | State |
| 2025-09-05 | CALYX ENERGY III LLC / CARVER PAD | DUSTIN, Hughes, OK | Pass | State |
| 2025-09-05 | FORMENTERA OPERATIONS / BETH 13 M1H BETH 24 M1H | HENNESSEY, Kingfisher, OK | Pass | State |
| 2025-09-04 | BCE MACH III LLC / LSEOU 41 2HO LSEOU 47 2HO LSEOU 47 3 | DOVER, Kingfisher, OK | Pass | State |
| 2025-09-04 | BCE MACH III LLC / LSEOU 41 2HO LSEOU 47 2HO LSEOU 47 3 | DOVER, Kingfisher, OK | Pass | State |
| 2025-09-04 | CALYX ENERGY III LLC / EAGLE PAD | VERNON, Pittsburg, OK | Pass | State |
| 2025-09-03 | BCE MACH LLC / FATBOY 29 32 12N 8W 3 4MHX REUTER 29 | EL RENO, Canadian, OK | Pass | State |
| 2025-09-03 | CALYX ENERGY III LLC / WASHINGTON PAD | DUSTIN, Hughes, OK | Pass | State |
| 2025-09-03 | CALYX ENERGY III LLC / MADISON PAD | DUSTIN, Hughes, OK | Pass | State |
| 2025-09-03 | BCE MACH III LLC / LSEOU 13 2HO LSEOU 14 4HO LSEOU 29 4HO | CRESCENT, Kingfisher, OK | Pass | State |
| 2025-09-03 | BCE MACH III LLC / LSEOU 13 2HO LSEOU 14 4HO LSEOU 29 4HO | CRESCENT, Kingfisher, OK | Pass | State |
| 2025-09-03 | BCE MACH LLC / PARKES FERN 1 8 PAD | HOOKER, Texas, OK | Pass | State |
| 2025-09-02 | ET GATHERING PROCESSING LLC / BURTSCHI COMPRESSOR STATION | NORGE, Grady, OK | Pass | State |
| 2025-09-02 | CALYX ENERGY III LLC / MAVERICK PAD | WETUMKA, Hughes, OK | Pass | State |
| 2025-09-02 | BCE MACH III LLC / POOL 2 17H LSEOU 36 3HO 35 2HO 35 3HO | DOVER, Kingfisher, OK | Pass | State |
| 2025-09-02 | BCE MACH III LLC / LSEOU 43 5HO PAD | DOVER, Kingfisher, OK | Pass | State |
| 2025-09-02 | BCE MACH III LLC / LSEOU 37 3HO LSEOU 37 4HO LSEOU 50 4HO | CRESCENT, Kingfisher, OK | Pass | State |
| 2025-09-02 | CALYX ENERGY III LLC / CHEATWOOD PAD | BEARDEN, Okfuskee, OK | Pass | State |
| 2025-09-02 | TALL OAK WOODFORD LLC / TREE HOUSE COMPRESSOR FACILITY | MCALESTER, Pittsburg, OK | Pass | State |
| 2025-09-02 | TALL OAK WOODFORD LLC / TREE HOUSE COMPRESSOR FACILITY | MCALESTER, Pittsburg, OK | Pass | State |
| 2025-09-02 | TALL OAK WOODFORD LLC / TREE HOUSE COMPRESSOR FACILITY | MCALESTER, Pittsburg, OK | Pass | State |
| 2025-09-02 | TALL OAK WOODFORD LLC / TREE HOUSE COMPRESSOR FACILITY | MCALESTER, Pittsburg, OK | Pass | State |
| 2025-09-02 | TALL OAK WOODFORD LLC / TREE HOUSE COMPRESSOR FACILITY | MCALESTER, Pittsburg, OK | Pass | State |
| 2025-09-02 | TALL OAK WOODFORD LLC / TREE HOUSE COMPRESSOR FACILITY | MCALESTER, Pittsburg, OK | Pass | State |
| 2025-08-29 | TARGA PIPELINE MIDCONTINENT LLC / TIVIS COMPRESSOR STATION | RATLIFF CITY, Carter, OK | Pass | State |
| 2025-08-28 | TARGA PIPELINE MIDCONTINENT LLC / TIVIS COMPRESSOR STATION | RATLIFF CITY, Carter, OK | Pass | State |
| 2025-08-28 | TARGA PIPELINE MIDCONTINENT LLC / TIVIS COMPRESSOR STATION | RATLIFF CITY, Carter, OK | Pass | State |
| 2025-08-28 | IRON HORSE MIDSTREAM LLC / REMINGTON COMPRESSOR STATION | MINCO, Grady, OK | Pass | State |
| 2025-08-28 | BCE MACH II LLC / YELLOW WOLF 2H 19 PAD | REYDON, Roger Mills, OK | Pass | State |
| 2025-08-27 | IRON HORSE MIDSTREAM LLC / CRUSADER COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2025-08-27 | IRON HORSE MIDSTREAM LLC / CRUSADER COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2025-08-27 | TARGA PIPELINE MIDCONTINENT LLC / TIVIS COMPRESSOR STATION | RATLIFF CITY, Carter, OK | Pass | State |
| 2025-08-27 | TARGA PIPELINE MIDCONTINENT LLC / TIVIS COMPRESSOR STATION | RATLIFF CITY, Carter, OK | Pass | State |
| 2025-08-27 | BCE MACH III LLC / SCOUT 1906 1 34MH GABRIEL 34 27 19 6 3 | HENNESSEY, Kingfisher, OK | Pass | State |
| 2025-08-27 | BCE MACH III LLC / EHU 252H-259H FACILITY | HENNESSEY, Kingfisher, OK | Pass | State |
| 2025-08-27 | BCE MACH III LLC / LNU 82 4HO LNU 51 4HO LNU 50 6HO LNU 5 | CRESCENT, Kingfisher, OK | Pass | State |
| 2025-08-27 | BCE MACH III LLC / LNU 42 4HO 42 5HO 43 2HO PAD | CRESCENT, Kingfisher, OK | Pass | State |
| 2025-08-27 | BCE MACH III LLC / LNU 10 2HO PAD | CRESCENT, Kingfisher, OK | Pass | State |
| 2025-08-26 | IRON HORSE MIDSTREAM LLC / CRUSADER COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2025-08-26 | IRON HORSE MIDSTREAM LLC / CRUSADER COMPRESSOR STATION | EL RENO, Canadian, OK | Pass | State |
| 2025-08-26 | FORMENTERA OPERATIONS / CAROLYN 27 M1H | BISON, Garfield, OK | Pass | State |
| 2025-08-26 | FORMENTERA OPERATIONS / PEACH PAD | BISON, Garfield, OK | Pass | State |
| 2025-08-26 | FORMENTERA OPERATIONS / ELVERDA PAD | BISON, Garfield, OK | Pass | State |
| 2025-08-26 | FORMENTERA OPERATIONS / ELVERDA PAD | BISON, Garfield, OK | Pass | State |
| 2025-08-26 | FORMENTERA OPERATIONS / ARLENE PAD | BISON, Garfield, OK | Pass | State |
| 2025-08-26 | SUPERIOR MIDSTREAM LLC / REEDING COMPRESSOR STATION | CASHION, Kingfisher, OK | Pass | State |
| 2025-08-26 | BCE MACH III LLC / LNU 15 6HO 41 3HO PAD | DOVER, Kingfisher, OK | Pass | State |
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Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.